EP1431231B1 - Elevator without machineroom - Google Patents
Elevator without machineroom Download PDFInfo
- Publication number
- EP1431231B1 EP1431231B1 EP01972540A EP01972540A EP1431231B1 EP 1431231 B1 EP1431231 B1 EP 1431231B1 EP 01972540 A EP01972540 A EP 01972540A EP 01972540 A EP01972540 A EP 01972540A EP 1431231 B1 EP1431231 B1 EP 1431231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hoistway
- sheave
- car
- weight
- room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/001—Arrangement of controller, e.g. location
- B66B11/002—Arrangement of controller, e.g. location in the hoistway
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
Definitions
- the present invention relates to a machine-room-less elevator with a winch and a deflection wheel arranged on the top of a hoistway.
- Figs. 10 through 13 show a known machine-room-less elevator with 1:1 roping.
- 1 designates a hoistway
- 2 the top of the hoistway
- 3 a car
- 4 a weight
- 5 a deflection wheel that suspends the weight
- 6 designates a winch that is installed on the hoistway top 2 and is composed of a sheave 7 and a motor 8.
- 9 designates a pair of car side guide rails that guide the vertical movement of the car 3.
- 10 designates a pair of weight side guide rails that guide the vertical movement of the weight 4.
- 11 designates support plates that are attached to tip ends of the car side guide rails 9 and the weight side rails 10, respectively.
- 12 designates a bed that is fixedly secured to the support plates 11 through resilient members 13 for holding the winch 6 and the deflection wheel 5.
- 14 designates a main rope that is wrapped around the sheave 7 of the winch 6 and the deflection wheel 5 and is fixedly attached at one end thereof to a rope stop 50 on an upper portion of the weight 4 and at the other end thereof to a rope stop 51 on an upper portion of the car 3.
- the main rope 14 with its one end fixed to the rope stop 50 on the upper portion of the weight 4 ascends from the rope stop 50 along the hoistway 1, and is then wrapped around an upper side of the deflection wheel 5, after which it extends to the sheave 7 of the winch 6.
- the main rope 14 is wrapped around the sheave 7.
- the main rope 14 extending from the deflection wheel 5 begins to be wrapped from a lower portion of the sheave 7.
- the main rope 14, after having been wrapped around almost the entire circumstance of the sheave 7 in the counterclockwise direction in Fig. 10 descends in the hoistway 1 to the car 3, and is finally fixedly attached to the rope stop 51 of the car 3.
- Fig. 12 and Fig. 13 are views that show the positional relation of the sheave 7 and the deflection wheel 5 in Fig. 10 , wherein Fig. 12 is a plan view thereof, and Fig. 13 is a side elevation thereof.
- X axis, Y axis and Z axis represent an orthogonal coordinate system in Fig. 12 and Fig. 13 , wherein the X axis indicates the direction of the rotation axis of the deflection wheel 5, the Y axis shows the horizontal direction, and the Z axis shows the vertical direction.
- the known machine-room-less elevator is constructed in the above-mentioned manner, with the winch 6 being arranged inclined against the deflection wheel 5 with respect to the horizontal and the vertical.
- the winch 6 being arranged inclined against the deflection wheel 5 with respect to the horizontal and the vertical.
- Document JP 11 310 372 A discloses an elevator having in one configuration a car side deflection wheel and a weight side deflection wheel arranged on a straight line when viewed along the hoistway.
- WO 99/43596 refers to an elevator system, which includes a hoistway having a plurality of hoistway doors. An elevator car and a counterweight are provided in the hoistway. A drive motor is drivingly coupled to the elevator car and the counterweight, and is located adjacent to either the top or bottom portion of a.hoistway door so as to elminiate the need to provide a machine room above the hoistway ceiling.
- the present invention is intended to obviate the problems as referred to above, and has for its object to provide a machine-room-less elevator in which a main rope is wrapped around a plurality of wheels which are arranged in such a manner that grooves in the wheels for receiving the main rope are disposed on a straight line, thereby making it possible to ensure traction, prolong the usable life of the rope and reduce an installation space in a vertical direction of a hoistway.
- a sheave and a car side deflection wheel are arranged on a straight line when viewed along a hoistway, and an idle wheel is arranged under the shave in an overlapped relation.
- the idle wheel, the sheave and the car side deflection wheel have their respective axes arranged in parallel with respect to one another.
- a main rope, after ascending from a weight along the hoistway, is wrapped around the idle wheel, the sheave and the car side deflection wheel, and thereafter descends in the hoistway to arrive at a car.
- Fig. 1 is a schematic perspective view of a machine-room-less elevator.
- Fig. 2 is a plan view of the top of a hoistway in Fig. 1 .
- Fig. 3 is a cross sectional arrow view taken along line A-A in Fig. 2 .
- 1 designates a hoistway
- 2 the top of the hoistway
- 3 a car
- 4 a weight
- 5 a deflection wheel from which the weight 4 is suspended
- 6 designates a winch that is installed on the top 2 of the hoistway and is composed of a sheave 7 and a motor 8.
- 9 designates a pair of car side guide rails that guide the vertical movement of the car 3.
- 10 designates a pair of weight side guide rails that guide the vertical movement of the weight 4.
- 11 designates support plates that are attached to tip ends of the car side guide rails 9 and the weight side guide rails 10, respectively.
- 13 designates resilient members that are fixedly secured to the support plates 11, respectively, for preventing driving vibrations of the winch 6 from being transmitted to a building.
- 12 designates a bed fixedly secured to the support plates 11 through the resilient members 13.
- 14 designates a main rope that is fixedly attached at one end thereof to a rope stop 50 on an upper portion of the weight 4, and at the other end thereof to a rope stop 51 on an upper portion of the car 3.
- 15 designates a car side deflection wheel that is supported by the bed 12 with its axis being arranged in parallel to and between the sheave 7 and the weight side deflection wheel 5 in a row in such a manner that a groove in the sheave 7 around which the main rope 14 is wrapped, a groove in the car side deflection wheel 15 and a groove in the weight side deflection wheel 5 are arranged on a straight line.
- 16 designates a control console that is fixedly mounted on the bed 12 for controlling the elevator.
- 17 designates a speed governor that is fixedly mounted on the bed 12 for detecting the speed of the elevator and stopping it upon emergency.
- 18 designates an inflating-deflating maintenance gangway with its one end rotatably mounted on the bed 12.
- the control console 16, the speed governor 17 and the gangway 18 are arranged at locations lower than the height of the winch 6.
- the speed governor 17 and the gangway 18 are omitted in Fig. 1 .
- the main rope 14 with one end thereof fixedly attached to the rope stop 50 on the upper portion of the weight 4 ascends from the rope stop 50 along the hoistway 1 and is then wrapped around an upper side of the deflection wheel 5, after which the main rope 14 extends to the sheave 7 of the winch 6.
- the main rope 14 is wrapped around the sheave 7.
- the main rope 14 extending from the deflection wheel 5 begins to be wrapped from an upper portion of the sheave 7, and then goes almost halfway around the circumference of the sheave 7 in the counterclockwise direction in Fig. 1 , after which the main rope 14 is continuously wrapped around an upper portion of the car side deflection wheel 15 over a half of the circumference thereof.
- the main rope 14 descends in the hoistway 1 to the car 3, where it is finally fixedly attached to the rope stop 51 of the car 3.
- the bed 12 is fitted in the heightwise range of the winch 6, and the control console 16, the speed governor 17 and the maintenance gangway 18 are arranged at locations lower than the height of the winch 6.
- the space at the top 2 of the hoistway may be small.
- the wrapping angle of the main rope 14 with respect to the sheave 7 can be from 120° , which is a minimum wrapping angle necessary to ensure a minimum traction, up to about 270° at the maximum.
- this is convenient when a great traction capability is required.
- the sheave diameter can be reduced, whereby an unbalanced torque on the elevator can be accordingly decreased.
- the diameter of each of the winch 6, the sheave 7 and the deflection wheels 5, 15 can also be reduced, thus making it possible to diminish the space at the top of the hoistway.
- the respective axes of the car side deflection wheel 15, the sheave 7 and the weight side deflection wheel 5 are horizontal and parallel with respect to one another, they are not necessarily required to be horizontal.
- Fig. 4 is a perspective view of a further machine-room-less elevator.
- Fig. 5 is a plan view of the top of a hoistway of Fig. 4 .
- the sheave 7 of the winch 6, an idle wheel 19, and the weight side deflection wheel 5 are fixedly attached to the bed 12 on a straight line, and the respective axes of the sheave 7, the idle wheel 19 and the weight side deflection wheel 5 are horizontal and parallel with respect to one another.
- the main rope 14 with one end thereof fixedly attached to the rope stop 50 on an upper portion of the weight 4 ascends from the rope stop 50 along the hoistway 1 and then is wrapped around an upper side of the deflection wheel 5. Thereafter, the main rope 14 is wrapped around a lower portion of the idle wheel 19 over a half of the circumference thereof, and it is then wrapped around an upper side of the sheave 7 over a half of the circumference thereof. Subsequently, the main rope 14 descends in the hoistway 1 to the car 3, where it is finally fixedly secured to the rope stop 51 of the car 3.
- the wrapping angle of the main rope 14 with respect to the sheave 7 can be adjusted by the position of the idle wheel 19 fixedly mounted on the bed 12, so that a prescribed traction can be ensured.
- the sheave 7, the idle wheel 19 and the weight side deflection wheel 5 are arranged on a straight line in such a manner that their respective axes are arranged horizontal and parallel with respect to one another, it is possible to prolong the usable life of the main rope 14.
- the space at the top 2 of the hoistway may be small, as in the first embodiment.
- the respective axes of the sheave 7, the idle wheel 19 and the weight side deflection wheel 5 may not be horizontal.
- Fig. 6 is a perspective view of a machine-room-less elevator according to an embodiment of the present invention.
- Fig. 7 is a plan view of the top of a hoistway in Fig. 6 .
- the winch 6 is fixedly mounted on the bed 12 at a location above the weight 4 on the top 2 of the hoistway, and the idle wheel 19 is arranged under the winch 6 in an overlapped manner.
- the sheave 7 and the car side deflection wheel 15 are fixed to the bed 12 on a straight line when viewed along the hoistway 1, and their respective axes are parallel with each other.
- the main rope 14 with one end thereof being fixedly attached to the rope stop 50 at an upper portion of the weight 4 ascends from the rope stop 50 along the hoistway 1, and it is then wrapped at its one side around the idle wheel 19. Thereafter, the main rope 14, after having been wrapped around a one side of the sheave 7 over about a half of the circumference thereof, is wrapped around the car side deflection wheel 15 over about a quarter of the circumference thereof. Subsequently, the main rope 14 descends in the hoistway 1 to the car 3, where it is finally fixedly attached to the rope stop 51 of the car 3.
- the wrapping angle of the main rope 14 with respect to the sheave 7 can be adjusted by the position of the idle wheel 19 fixedly mounted on the bed 12, so that a prescribed traction can be ensured.
- the idle wheel 19 and the car side deflection wheel 15 are arranged on a straight line and their respective axes are parallel with respect to one another, it is possible to prolong the usable life of the main rope 14.
- the idle wheel 19 may be arranged between the sheave 7 and the car side deflection wheels 15, so that the main rope 14, after ascending from the weight 4 along the hoistway 1, is wrapped around an upper side of the sheave 7, after which the main rope 14 is wrapped around a lower side of the idle wheel 19, and it is then continuously wrapped around an upper side of the car side deflection wheel 15 over about a half of the circumference thereof, and finally descends in the hoistway 1 to arrive at the car 3.
- the sheave 7, the idle wheel 19 and the car side deflection wheel 15 are arranged on a straight line when viewed along the hoistway 1, and the respective axes of the sheave 7, the idle wheel 19 and the weight side deflection wheel 5 are parallel with respect to one another. As a result, the life of the main rope 14 can be prolonged.
- Fig. 8 is a perspective view of a fixing member fixedly attached to an end portion of a belt when the belt is used as the main rope 14 of the previous configuration.
- Fig. 9 is a cross sectional arrow view taken along line B-B of Fig. 8 .
- 20 designates a fixture having a plurality of protruded portions 20a that protrude in a horizontal direction
- 21 designates a presser plate having concave portions 21a formed so as to conform to the protruded portions 20a of the fixture 20.
- the main rope 14 is clamped between the fixture 20 and the presser plate 21 by means of bolts 22.
- the presser plate 21 has a metal fitting 23 that serves to fix a turned end portion of the main rope 14, and this metal fitting 23 is fastened to the presser plate 21 by means of a bolt 24.
- 25 designates a hanger bolt that is combined with the fixture 20 by means of a pin 26.
- a machine-room-less elevator may be constructed by combining the first through third embodiments with one another in accordance with a change in size of the car or the weight.
- the bed 12 is fixedly mounted on the car side guide rails 9 and the weight side guide rails 10, it may instead be fixed to a wall surface which is a wall portion of the hoistway or a pillar which is a wall portion extending along the wall surface.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
- The present invention relates to a machine-room-less elevator with a winch and a deflection wheel arranged on the top of a hoistway.
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Figs. 10 through 13 show a known machine-room-less elevator with 1:1 roping. In thesefigures, 1 designates a hoistway, 2 the top of the hoistway, 3 a car, 4 a weight, and 5 a deflection wheel that suspends theweight 4. 6 designates a winch that is installed on thehoistway top 2 and is composed of asheave 7 and amotor 8. 9 designates a pair of car side guide rails that guide the vertical movement of thecar 3. 10 designates a pair of weight side guide rails that guide the vertical movement of theweight 4. 11 designates support plates that are attached to tip ends of the carside guide rails 9 and theweight side rails 10, respectively. 12 designates a bed that is fixedly secured to thesupport plates 11 throughresilient members 13 for holding thewinch 6 and thedeflection wheel 5. 14 designates a main rope that is wrapped around thesheave 7 of thewinch 6 and thedeflection wheel 5 and is fixedly attached at one end thereof to arope stop 50 on an upper portion of theweight 4 and at the other end thereof to arope stop 51 on an upper portion of thecar 3. - The
main rope 14 with its one end fixed to therope stop 50 on the upper portion of theweight 4 ascends from therope stop 50 along thehoistway 1, and is then wrapped around an upper side of thedeflection wheel 5, after which it extends to thesheave 7 of thewinch 6. - Thereafter, the
main rope 14 is wrapped around thesheave 7. At this time, themain rope 14 extending from thedeflection wheel 5 begins to be wrapped from a lower portion of thesheave 7. Then, themain rope 14, after having been wrapped around almost the entire circumstance of thesheave 7 in the counterclockwise direction inFig. 10 , descends in thehoistway 1 to thecar 3, and is finally fixedly attached to therope stop 51 of thecar 3. - With the machine-room-less elevator as constructed above, when the
main rope 14 is wrapped around thesheave 7, that portion of themain rope 14 which extends from thedeflection wheel 5 to thesheave 7 and that portion of themain rope 14 which extends from thesheave 7 to thecar 3 cross each other, but they do not mutually interfere with each other. - That is, the
winch 6 is installed in such a manner that thesheave 7 is offset from thedeflection wheel 5 with a horizontal eccentricity of within 1.5 degrees and a vertical eccentricity of within 2.5 degrees.Fig. 12 and Fig. 13 are views that show the positional relation of thesheave 7 and thedeflection wheel 5 inFig. 10 , whereinFig. 12 is a plan view thereof, andFig. 13 is a side elevation thereof. Here, note that X axis, Y axis and Z axis represent an orthogonal coordinate system inFig. 12 and Fig. 13 , wherein the X axis indicates the direction of the rotation axis of thedeflection wheel 5, the Y axis shows the horizontal direction, and the Z axis shows the vertical direction. - With the machine-room-less elevator of the above-mentioned construction, when the
motor 8 of thewinch 6 is driven to operate, thesheave 7 is caused to rotate whereby themain rope 14 is moved by the traction thereof. In accordance with the movement of themain rope 14, thecar 3 and theweight 4 are operated to rise and fall in opposite directions, respectively. - The known machine-room-less elevator is constructed in the above-mentioned manner, with the
winch 6 being arranged inclined against thedeflection wheel 5 with respect to the horizontal and the vertical. As a result, there arises the following problem. That is, when a wire rope is used as themain rope 14, rubbing thereof at corner portions of a rope groove of each of thesheave 7 and thedeflection wheel 5 can not be avoided. In addition, when a belt is used as themain rope 14, the belt would be subjected to an offset load, so an adverse influence might be given to the belt. - Document
JP 11 310 372 A -
WO 99/43596 - As a further document the application
JP 8175623 A - The present invention is intended to obviate the problems as referred to above, and has for its object to provide a machine-room-less elevator in which a main rope is wrapped around a plurality of wheels which are arranged in such a manner that grooves in the wheels for receiving the main rope are disposed on a straight line, thereby making it possible to ensure traction, prolong the usable life of the rope and reduce an installation space in a vertical direction of a hoistway.
- Moreover, in a machine-room-less elevator according to the present invention, a sheave and a car side deflection wheel are arranged on a straight line when viewed along a hoistway, and an idle wheel is arranged under the shave in an overlapped relation. The idle wheel, the sheave and the car side deflection wheel have their respective axes arranged in parallel with respect to one another. A main rope, after ascending from a weight along the hoistway, is wrapped around the idle wheel, the sheave and the car side deflection wheel, and thereafter descends in the hoistway to arrive at a car.
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Fig. 1 is a perspective view of a machine-room-less elevator , which is not part of this invention. -
Fig. 2 is a plan view of the top of a hoistway inFig. 1 . -
Fig. 3 is a cross sectional arrow view taken along line A-A inFig. 2 . -
Fig. 4 is a perspective view of a machine-room-less elevator , which is not part of this invention. -
Fig. 5 is a plan view of the top of a hoistway inFig. 4 . -
Fig. 6 is a perspective view of a machine-room-less elevator according to the present invention. -
Fig. 7 is a plan view of the top of a hoistway inFig. 6 . -
Fig. 8 is a perspective view of a belt end fastening member. -
Fig. 9 is a cross sectional arrow view taken along line B-B inFig. 8 . -
Fig. 10 is a perspective view of a known machine-room-less elevator. -
Fig. 11 is a plan view of the top of a hoistway inFig. 10 . -
Fig. 12 is a plan view showing the positional relation between a sheave and a deflection wheel inFig. 10 . -
Fig. 13 is a side elevation ofFig. 10 . - Hereinafter, a preferred embodiment of the present invention will be described in detail while referring to the accompanying drawings. The same or equivalent members and parts are identified by the same symbols.
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Fig. 1 is a schematic perspective view of a machine-room-less elevator.Fig. 2 is a plan view of the top of a hoistway inFig. 1 .Fig. 3 is a cross sectional arrow view taken along line A-A inFig. 2 . - In these
figures, 1 designates a hoistway, 2 the top of the hoistway, 3 a car, 4 a weight, and 5 a deflection wheel from which theweight 4 is suspended. 6 designates a winch that is installed on thetop 2 of the hoistway and is composed of asheave 7 and amotor 8. 9 designates a pair of car side guide rails that guide the vertical movement of thecar 3. 10 designates a pair of weight side guide rails that guide the vertical movement of theweight 4. 11 designates support plates that are attached to tip ends of the carside guide rails 9 and the weightside guide rails 10, respectively. 13 designates resilient members that are fixedly secured to thesupport plates 11, respectively, for preventing driving vibrations of thewinch 6 from being transmitted to a building. 12 designates a bed fixedly secured to thesupport plates 11 through theresilient members 13. 14 designates a main rope that is fixedly attached at one end thereof to arope stop 50 on an upper portion of theweight 4, and at the other end thereof to arope stop 51 on an upper portion of thecar 3. 15 designates a car side deflection wheel that is supported by thebed 12 with its axis being arranged in parallel to and between thesheave 7 and the weightside deflection wheel 5 in a row in such a manner that a groove in thesheave 7 around which themain rope 14 is wrapped, a groove in the carside deflection wheel 15 and a groove in the weightside deflection wheel 5 are arranged on a straight line. - 16 designates a control console that is fixedly mounted on the
bed 12 for controlling the elevator. 17 designates a speed governor that is fixedly mounted on thebed 12 for detecting the speed of the elevator and stopping it upon emergency. 18 designates an inflating-deflating maintenance gangway with its one end rotatably mounted on thebed 12. Thecontrol console 16, thespeed governor 17 and the gangway 18 are arranged at locations lower than the height of thewinch 6. Here, note that thespeed governor 17 and the gangway 18 are omitted inFig. 1 . - The
main rope 14 with one end thereof fixedly attached to the rope stop 50 on the upper portion of theweight 4 ascends from therope stop 50 along thehoistway 1 and is then wrapped around an upper side of thedeflection wheel 5, after which themain rope 14 extends to thesheave 7 of thewinch 6. - Thereafter, the
main rope 14 is wrapped around thesheave 7. At this time, themain rope 14 extending from thedeflection wheel 5 begins to be wrapped from an upper portion of thesheave 7, and then goes almost halfway around the circumference of thesheave 7 in the counterclockwise direction inFig. 1 , after which themain rope 14 is continuously wrapped around an upper portion of the carside deflection wheel 15 over a half of the circumference thereof. Thereafter, themain rope 14 descends in thehoistway 1 to thecar 3, where it is finally fixedly attached to the rope stop 51 of thecar 3. - According to this machine-room-less elevator, since the
deflection wheel 5, the carside deflection wheel 15 and thesheave 7 are arranged on a straight line, themain rope 14 is not forcibly fitted or engaged into the respective grooves in the wheels and the sheave. Accordingly, it becomes possible to ensure the prolongation of the life of themain rope 14 as well as elevator hoisting traction. - In addition, the
bed 12 is fitted in the heightwise range of thewinch 6, and thecontrol console 16, thespeed governor 17 and themaintenance gangway 18 are arranged at locations lower than the height of thewinch 6. As a result, the space at thetop 2 of the hoistway may be small. - Moreover, in the case of this machine-room-less elevator, the wrapping angle of the
main rope 14 with respect to thesheave 7 can be from 120° , which is a minimum wrapping angle necessary to ensure a minimum traction, up to about 270° at the maximum. Thus, this is convenient when a great traction capability is required. - When a flat belt composed of a number of rows of thin built-in wire ropes is adopted as the
main rope 14 in place of the wire rope, the sheave diameter can be reduced, whereby an unbalanced torque on the elevator can be accordingly decreased. Besides, the diameter of each of thewinch 6, thesheave 7 and thedeflection wheels - Furthermore, although the respective axes of the car
side deflection wheel 15, thesheave 7 and the weightside deflection wheel 5 are horizontal and parallel with respect to one another, they are not necessarily required to be horizontal. -
Fig. 4 is a perspective view of a further machine-room-less elevator.Fig. 5 is a plan view of the top of a hoistway ofFig. 4 . When viewed along thehoistway 1, thesheave 7 of thewinch 6, anidle wheel 19, and the weightside deflection wheel 5 are fixedly attached to thebed 12 on a straight line, and the respective axes of thesheave 7, theidle wheel 19 and the weightside deflection wheel 5 are horizontal and parallel with respect to one another. - The
main rope 14 with one end thereof fixedly attached to the rope stop 50 on an upper portion of theweight 4 ascends from therope stop 50 along thehoistway 1 and then is wrapped around an upper side of thedeflection wheel 5. Thereafter, themain rope 14 is wrapped around a lower portion of theidle wheel 19 over a half of the circumference thereof, and it is then wrapped around an upper side of thesheave 7 over a half of the circumference thereof. Subsequently, themain rope 14 descends in thehoistway 1 to thecar 3, where it is finally fixedly secured to the rope stop 51 of thecar 3. - The wrapping angle of the
main rope 14 with respect to thesheave 7 can be adjusted by the position of theidle wheel 19 fixedly mounted on thebed 12, so that a prescribed traction can be ensured. - In addition, since the
sheave 7, theidle wheel 19 and the weightside deflection wheel 5 are arranged on a straight line in such a manner that their respective axes are arranged horizontal and parallel with respect to one another, it is possible to prolong the usable life of themain rope 14. - Moreover, since the height of the
idle wheel 19 is lower than the height of thewinch 6, the space at thetop 2 of the hoistway may be small, as in the first embodiment. - Here, note that the respective axes of the
sheave 7, theidle wheel 19 and the weightside deflection wheel 5 may not be horizontal. -
Fig. 6 is a perspective view of a machine-room-less elevator according to an embodiment of the present invention.Fig. 7 is a plan view of the top of a hoistway inFig. 6 . - In this embodiment, the
winch 6 is fixedly mounted on thebed 12 at a location above theweight 4 on thetop 2 of the hoistway, and theidle wheel 19 is arranged under thewinch 6 in an overlapped manner. In addition, thesheave 7 and the carside deflection wheel 15 are fixed to thebed 12 on a straight line when viewed along thehoistway 1, and their respective axes are parallel with each other. - The
main rope 14 with one end thereof being fixedly attached to the rope stop 50 at an upper portion of theweight 4 ascends from therope stop 50 along thehoistway 1, and it is then wrapped at its one side around theidle wheel 19. Thereafter, themain rope 14, after having been wrapped around a one side of thesheave 7 over about a half of the circumference thereof, is wrapped around the carside deflection wheel 15 over about a quarter of the circumference thereof. Subsequently, themain rope 14 descends in thehoistway 1 to thecar 3, where it is finally fixedly attached to the rope stop 51 of thecar 3. - According to this embodiment, the wrapping angle of the
main rope 14 with respect to thesheave 7 can be adjusted by the position of theidle wheel 19 fixedly mounted on thebed 12, so that a prescribed traction can be ensured. - In addition, since the
idle wheel 19, thesheave 7 and the carside deflection wheel 15 are arranged on a straight line and their respective axes are parallel with respect to one another, it is possible to prolong the usable life of themain rope 14. - Moreover, though not illustrated, the
idle wheel 19 may be arranged between thesheave 7 and the carside deflection wheels 15, so that themain rope 14, after ascending from theweight 4 along thehoistway 1, is wrapped around an upper side of thesheave 7, after which themain rope 14 is wrapped around a lower side of theidle wheel 19, and it is then continuously wrapped around an upper side of the carside deflection wheel 15 over about a half of the circumference thereof, and finally descends in thehoistway 1 to arrive at thecar 3. At this time, thesheave 7, theidle wheel 19 and the carside deflection wheel 15 are arranged on a straight line when viewed along thehoistway 1, and the respective axes of thesheave 7, theidle wheel 19 and the weightside deflection wheel 5 are parallel with respect to one another. As a result, the life of themain rope 14 can be prolonged. -
Fig. 8 is a perspective view of a fixing member fixedly attached to an end portion of a belt when the belt is used as themain rope 14 of the previous configuration.Fig. 9 is a cross sectional arrow view taken along line B-B ofFig. 8 . - In these figures, 20 designates a fixture having a plurality of protruded
portions 20a that protrude in a horizontal direction, and 21 designates a presser plate havingconcave portions 21a formed so as to conform to the protrudedportions 20a of thefixture 20. Themain rope 14 is clamped between thefixture 20 and thepresser plate 21 by means ofbolts 22. Thepresser plate 21 has ametal fitting 23 that serves to fix a turned end portion of themain rope 14, and this metal fitting 23 is fastened to thepresser plate 21 by means of abolt 24. 25 designates a hanger bolt that is combined with thefixture 20 by means of apin 26. - According to this configuration, similar to a shackle for a wire rope generally adopted, a sufficient holding force can be expected against the
main rope 14 in the form of the belt, and hence the apparatus can be constructed in compact size, and the construction thereof at an installation site is also easy - Although not explained in detail in the above-mentioned respective configuration, a machine-room-less elevator may be constructed by combining the first through third embodiments with one another in accordance with a change in size of the car or the weight.
- In addition, although in the respective configurations,the
bed 12 is fixedly mounted on the carside guide rails 9 and the weight side guide rails 10, it may instead be fixed to a wall surface which is a wall portion of the hoistway or a pillar which is a wall portion extending along the wall surface.
Claims (10)
- A machine-room-less elevator comprising:a hoistway (1);a pair of car side guide rails (9) and a pair of weight side guide rails (10) installed inside said hoistway (1);a car (3) that is guided along said car side guide rails (9) for vertical movement inside said hoistway (1);a weight (4) that is guided along said weight side guide rails (10) for vertical movement inside said hoistway (1);a winch (6) that is arranged in said hoistway (1) at a top (2) of said hoistway (1) above a top floor stop position of said car (3), said winch (6) having a motor portion (8) and a sheave (7) that is driven to be rotated by said motor portion (8) for moving said car (3) and said weight (4) in a vertical direction;a main rope (14) being fixedly attached at one end thereof to said car (3) and at the other end thereof to said weight (4) for hanging said car (3) and said weight (4) inside said hoistway (1);an idle wheel (19) around which said main rope (14) is wrapped between said weight (4) and said sheave (7); anda car side deflection wheel (15) around which said main rope (14) is wrapped between said car (3) and said sheave (7);wherein said sheave (7) and said car side deflection wheel (15) are arranged on a straight line when viewed along said hoistway (1), andcharacterized in thatsaid idle wheel (19) is arranged under said sheave (7) in an overlapped relation, and said idle wheel (19), said sheave (7) and said car side deflection wheel (15) have their respective axes arranged in parallel with respect to one another; andwherein said main rope (14), after ascending from said weight (4) along said hoistway (1), is wrapped around said idle wheel (19), said sheave (7) and said car side deflection wheel (15), and thereafter descends in said hoistway (1) to arrive at said car (3).
- The machine-room-less elevator as set forth in claim 1, wherein the respective axes of said sheave (7) and said car side deflection wheel (15) are parallel with respect to each other.
- The machine-room-less elevator as set forth in any one of claim 1 through claim 2, wherein a wrapping angle of said main rope (14) with respect to said sheave (7) is in the range of 120 - 270°.
- The machine-room-less elevator as set forth in any one of claim 1 through claim 3, wherein said main rope (14) comprises a wire rope or a belt.
- The machine-room-less elevator as set forth in claim 1, wherein said idle wheel (19) is arranged inside the top (2) of said hoistway (1) at a location under a bed (12) that supports said winch (6).
- The machine-room-less elevator as set forth in any one of claim 1 through claim 5, wherein said bed (12), which is provided inside the top (2) of said hoistway (1) to support said winch (6), is arranged so as to fit in a heightwise range of said winch (6).
- The machine-room-less elevator as set forth in claim 5 or claim 6, wherein a control console (16) that controls the operation of said elevator, a speed governor (17) that stops said elevator upon emergency by detecting the vertical moving speed of said elevator, and a maintenance gangway (18) are respectively mounted on said bed (12), and the height of each of said control console (16), said speed governor (17) and the maintenance gangway (18) is lower than the height of said winch (6).
- The machine-room-less elevator as set forth in any one of claim 5 through claim 7, wherein said bed (12) is fixedly secured to either one of said car side guide rails (9), said weight side guide rails (10) and a wall portion of said hoistway (1).
- The machine-room-less elevator as set forth in claim 8, wherein said bed (12) is fixedly secured through a resilient member (13) to either one of said car side guide rails (9), said weight side guide rails (10) and a wall portion of said hoistway (1).
- The machine-room-less elevator as set forth in any one of claims 4 and 6 through 9, wherein one end of said belt is clamped by a fixture having protruded portions and a presser plate having concave portions formed so as to conform to said protruded portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09007870A EP2108610B1 (en) | 2001-09-27 | 2001-09-27 | Machine-room-less elevator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/008451 WO2003031310A1 (en) | 2001-09-27 | 2001-09-27 | Machine room-less elevator |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09007870A Division EP2108610B1 (en) | 2001-09-27 | 2001-09-27 | Machine-room-less elevator |
EP09007870.0 Division-Into | 2009-06-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1431231A1 EP1431231A1 (en) | 2004-06-23 |
EP1431231A4 EP1431231A4 (en) | 2008-12-10 |
EP1431231B1 true EP1431231B1 (en) | 2010-12-15 |
Family
ID=11737762
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01972540A Expired - Lifetime EP1431231B1 (en) | 2001-09-27 | 2001-09-27 | Elevator without machineroom |
EP09007870A Expired - Lifetime EP2108610B1 (en) | 2001-09-27 | 2001-09-27 | Machine-room-less elevator |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09007870A Expired - Lifetime EP2108610B1 (en) | 2001-09-27 | 2001-09-27 | Machine-room-less elevator |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP1431231B1 (en) |
JP (1) | JP4849431B2 (en) |
KR (1) | KR20030048162A (en) |
CN (1) | CN1216785C (en) |
DE (1) | DE60143674D1 (en) |
WO (1) | WO2003031310A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1693329A4 (en) * | 2003-12-11 | 2011-07-06 | Mitsubishi Electric Corp | Elevator apparatus |
JPWO2005082767A1 (en) * | 2004-03-01 | 2008-01-17 | 三菱電機株式会社 | Elevator equipment |
CN100590053C (en) * | 2004-09-22 | 2010-02-17 | 三菱电机株式会社 | Elevator apparatus |
JP5017904B2 (en) * | 2006-03-31 | 2012-09-05 | 株式会社日立製作所 | Elevator equipment |
KR100724987B1 (en) * | 2006-04-12 | 2007-06-04 | 미쓰비시덴키 가부시키가이샤 | Elevator apparatus |
ES2441443T3 (en) * | 2008-12-05 | 2014-02-04 | Otis Elevator Company | Lift machine support |
CN101837919B (en) * | 2010-05-28 | 2012-05-23 | 江南嘉捷电梯股份有限公司 | Elevator with a movable elevator car |
JP5715475B2 (en) * | 2011-04-21 | 2015-05-07 | 新明和工業株式会社 | Elevating drive device and mechanical parking equipment having the same |
EP2985255B1 (en) * | 2014-08-11 | 2021-11-17 | KONE Corporation | Elevator |
KR102170422B1 (en) | 2018-01-25 | 2020-10-27 | 경동제약 주식회사 | A Novel Tofacitinib Salt, Preparation Methods thereof and Pharmaceutical Compositions Comprising thereof |
KR20190110459A (en) | 2018-03-20 | 2019-09-30 | 삼진제약주식회사 | Novel Salt, Preparation Methods thereof and Pharmaceutical Compositions Comprising thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS619889Y2 (en) * | 1977-06-13 | 1986-03-29 | ||
JPH08175623A (en) * | 1994-12-21 | 1996-07-09 | Daifuku Co Ltd | Elevating device and storage facility provided with the same |
EP1042209B1 (en) | 1998-02-26 | 2005-08-31 | Otis Elevator Company | Elevator system having drive motor located adjacent to hoistway door |
US6247557B1 (en) * | 1998-04-28 | 2001-06-19 | Kabushiki Kaisha Toshiba | Traction type elevator apparatus |
JPH11310372A (en) | 1998-04-28 | 1999-11-09 | Toshiba Elevator Co Ltd | Elevator equipment |
IT249057Y1 (en) * | 2000-01-19 | 2003-03-25 | Ceam Srl | IMPROVED DRIVING DEVICE FOR LIFTS. |
US6353979B1 (en) * | 2000-01-19 | 2002-03-12 | Otis Elevator Company | Termination for flat flexible tension member |
-
2001
- 2001-09-27 CN CN018195105A patent/CN1216785C/en not_active Expired - Fee Related
- 2001-09-27 DE DE60143674T patent/DE60143674D1/en not_active Expired - Lifetime
- 2001-09-27 JP JP2003534302A patent/JP4849431B2/en not_active Expired - Fee Related
- 2001-09-27 EP EP01972540A patent/EP1431231B1/en not_active Expired - Lifetime
- 2001-09-27 EP EP09007870A patent/EP2108610B1/en not_active Expired - Lifetime
- 2001-09-27 KR KR10-2003-7006939A patent/KR20030048162A/en active Search and Examination
- 2001-09-27 WO PCT/JP2001/008451 patent/WO2003031310A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003031310A1 (en) | 2003-04-17 |
EP1431231A1 (en) | 2004-06-23 |
CN1216785C (en) | 2005-08-31 |
EP1431231A4 (en) | 2008-12-10 |
EP2108610A1 (en) | 2009-10-14 |
JPWO2003031310A1 (en) | 2005-01-20 |
JP4849431B2 (en) | 2012-01-11 |
KR20030048162A (en) | 2003-06-18 |
DE60143674D1 (en) | 2011-01-27 |
EP2108610B1 (en) | 2011-08-17 |
CN1476407A (en) | 2004-02-18 |
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